Mark Francis Mailhot, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

MD194698 Issued in OR

Practice address

220 NE Weidler St
Portland, OR 97232-1121

Phone

(314) 888-5233

Fax

(619) 984-4301

NPI assigned

Feb 13, 2007

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in WA, OR2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Internal MedicineAlso: Preventive Medicine

Education

University of Pittsburgh School of Medicine, 1997

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Sea Mar Community Health CentersGroup PAC ID 7315831161, shared by 37 NPIs, 235 clinicians

My Catholic Doctor PLLCGroup PAC ID 7214367101, 25 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• My Catholic Doctor, P.L.L.C.

  • Pediatrics Physician
  • New Canaan, CT
  • NPI 1396201307

  OR

  Medicare reassignment Care Compare group NPD
• Signify Health Medical Associates, PLLC

  • General Practice Physician
  • Dallas, TX
  • NPI 1750845863

  OR, WA

  Medicare reassignment NPD
• Virginia Garcia Memorial Health Center

  • Federally Qualified Health Center (FQHC)
  • Cornelius, OR
  • NPI 1679528012
  Medicare reassignment
• Northeast Valley Health Corporation

  • Federally Qualified Health Center (FQHC)
  • Santa Clarita, CA
  • NPI 1548960834
  NPD (past)
• Northeast Valley Health Corporation

  • Federally Qualified Health Center (FQHC)
  • Van Nuys, CA
  • NPI 1629079009
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1171324800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782777600000",
    "number": "1861534075",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "220 NE WEIDLER ST",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972321121",
            "telephone_number": "314-888-5233",
            "fax_number": "619-984-4301"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "220 NE WEIDLER ST",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972321121",
            "telephone_number": "314-888-5233",
            "fax_number": "619-984-4301"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "14434 Ambaum Blvd SW Ste 5",
            "address_purpose": "LOCATION",
            "city": "Burien",
            "state": "WA",
            "postal_code": "981661438",
            "country_code": "US",
            "telephone_number": "206-812-6140",
            "fax_number": "206-812-2466",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAILHOT",
        "first_name": "MARK",
        "middle_name": "FRANCIS",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-02-13",
        "last_updated": "2026-06-30",
        "certification_date": "2026-06-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WA",
            "license": "MD.MD.00047492",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OR",
            "license": "MD194698",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "8473431",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Marissa Maier
• Nicholas Maier
• Nicholas Maier, DO
• Ariana E Maileoi, FNP
• Wendy Carol Mailho.Sheilds, MS, AT, CADC3
• Taben Main, PHARMD, MS
• Ruth A. Maionchi, S.W.
• Maire Murphy Counseling LLC
• Stacey Kristen Mairs, LMT
• Juliet Maisel, LPC

• Internal Medicine Physician in Portland, OR
• Providers in Portland, OR by specialty
• Internal Medicine Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 30, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.